Double-layered window curtain

ABSTRACT

A double-layered window curtain includes amounting seat, a window curtain unit, and a cover unit. The window curtain unit includes a curtain member mounted to the mounting seat and that has inner and outer surfaces, a driver disposed on the mounting seat, and a cord extending through the driver and connected to the curtain member on the inner surface of the curtain member. The cover unit includes a shade cloth connected to the inner surface of the curtain member and covering the cord. The curtain member and the shade cloth are together folded and unfolded by manipulation of the cord and by cooperation of the cord with the driver.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a window shade device, more particularly to a double-layered window curtain.

2. Description of the Related Art

Referring to FIG. 1, a conventional window curtain 1 includes a mounting seat 11, two or more positioning strings 12 mounted to the mounting set 11 and horizontally spaced apart from each other, a plurality of curtain pieces 13 horizontally disposed and connected in a side-by-side manner to the positioning strings 12, a driver 14 disposed on the mounting seat 11, and a cord 15 extending through the driver 14 and connected to one or more of the curtain pieces 13. The cord 15 further has a connecting segment 16.

The curtain pieces 13 are pulled up and down along a direction 10 by manipulation of the cord 15 and by cooperation of the cord 15 with the driver 14 to adjust a shading height.

However, the conventional window curtain 1 has disadvantages as follows:

i) It is possible for the cord 15 to wrap around a child's neck, thereby causing strangling injury. The connecting segment 16 of the cord 15 running at the back side of the curtain pieces 13 will also cause strangling injury if a child sticks his/her head in between the curtain pieces 13 and the connecting segment 16. Therefore, the conventional window curtain 1 is dangerous, particularly to children.

ii) There are many gaps between the curtain pieces 13 through which light can penetrate. Therefore, the conventional window curtain 1 only minimally blocks light. In addition, people are able to look through the gaps, and hence, the conventional window curtain 1 is limited with respect to the amount of privacy provided.

SUMMARY OF THE INVENTION

Therefore, the object of the present invention is to provide a double-layered window curtain which is safe, and improves shading effect and privacy.

Accordingly, a double-layered window curtain of the present invention comprises a mounting seat, a window curtain unit, and a cover unit.

The window curtain unit includes a curtain member mounted to the mounting seat and that has inner and outer surfaces, a driver disposed on the mounting seat, and a cord extending through the driver and connected to the curtain member on the inner surface of the curtain member.

The cover unit includes a shade cloth connected to the inner surface of the curtain member and covering the cord.

The curtain member and the shade cloth are together folded and unfolded by manipulation of the cord and by cooperation of the cord with the driver.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which:

FIG. 1 is a perspective view of a conventional window curtain;

FIG. 2 is a perspective view of a double-layered window curtain according to a preferred embodiment of the present invention, illustrating a cover unit in a state detached from a window curtain unit;

FIG. 3 is a perspective view of the double-layered window curtain of the preferred embodiment to illustrate a fully folded position of the double-layered window curtain; and

FIG. 4 is a fragmentary side view of the double-layered window curtain of the preferred embodiment in a fully unfolded position.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 2, a preferred embodiment of a double-layered window curtain according to the present invention is shown to comprise a mounting seat 21, a window curtain unit 22, and a cover unit 23.

Referring to FIGS. 2, 3, and 4, the window curtain unit 22 includes a curtain member 221, a driver 222, and a cord 223. The curtain member 221 is mounted to the mounting seat 21, and has inner and outer surfaces. When the double-layered window curtain is mounted covering a window inside a house, the outer surface of the curtain member 221 faces into the house while the inner surface of the curtain member 221 faces the window.

The curtain member 221 includes a plurality of horizontal shade components 224 disposed and connected in a side-by-side manner such that the curtain member 221 extends downwardly from the mounting seat 21 when the curtain member 221 is unfolded, and a plurality of guide rings 225 connected respectively to first selected ones of the shade components 224 to be thereby spaced apart vertically. The driver 222 is disposed on the mounting seat 21. The cord 223 extends through the driver 222 and is connected to the curtain member 221 on the inner surface of the curtain member 221. The cord 223 has a connecting segment 226 extending through the curtain member 221 and the guide rings 225, and a pulling segment 227 extending downwardly from the driver 222.

In this embodiment, each of the shade components 224 of the curtain member 221 is in the shape of a long piece, and is woven with adjacent ones thereof to form a roman curtain. However, the shade components 224 are not limited to such a configuration. Any other materials and/or fabrics and/or interconnecting methods in roman shades configurations may be used.

The cover unit 23 includes a shade cloth 231 connected to the inner surface of the curtain member 221. One end of the shade cloth 231 is mounted to the mounting seat 21. Spaced apart horizontal portions of the shade cloth 231 are attached to second selected ones of the shade components 224 of the curtain member 221 to thereby cover the connecting segment 226 of the cord 223 and the guide rings 225 of the curtain member 221. In this embodiment, the cover unit 23 further includes a plurality of weight components 232 attached to the shade cloth 231 and which are vertically spaced apart from each other. In this embodiment, each of the weight components 232 is a straight rod inserted into the shade cloth 231 such that the shade cloth 231 can be weighted down to abut against the curtain member 221. However, the mounting, configuration, and material of the weight components 232 may be varied, depending on requirements. Furthermore, in some embodiments, the weight components 232 are omitted from the configuration of the cover unit 23.

The curtain member 221 and the shade cloth 231 are together folded and unfolded by manipulation of the cord 223 and by cooperation of the cord 223 with the driver 222. Manipulation of the pulling segment 227 of the cord 223 results in folding and unfolding of the curtain member 221 and the shade cloth 231 among a fully folded position, a partially folded position, and a fully unfolded position.

The advantages of the present invention can be summarized as follows:

i) The shade cloth 231 is attached to the shade components 224 of the curtain member 221 so that the shade cloth 231 covers the connecting segment 226 of the cord 223 and the shade components 224 of the curtain member 221. As a result of this configuration, strangling injuries or other accidents may be avoided since the cord 223 is completely covered.

ii) The curtain member 221 and the shade cloth 231 form a double-layered shade, which can not only effectively screen light so that it does not penetrate gaps between the shade components 224 of the curtain member 221 but can also effectively prevent people from looking through any gaps that may be present in the curtain member 221.

iii) When the curtain member 221 and the shade cloth 231 are folded as shown in FIG. 3, a cascading shape is formed due to the presence of the weight components 232. This improves the aesthetics of the double-layered window curtain of the present invention.

While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements. 

1. A double-layered window curtain comprising: a mounting seat; a window curtain unit including a curtain member mounted to said mounting seat and having inner and outer surfaces, a driver disposed on said mounting seat, and a cord extending through said driver and connected to said curtain member on said inner surface of said curtain member; and a cover unit including a shade cloth connected to said inner surface of said curtain member and covering said cord; wherein said curtain member and said shade cloth are together folded and unfolded by manipulation of said cord and by cooperation of said cord with said driver.
 2. The double-layered window curtain as claimed in claim 1, wherein said cover unit includes a plurality of weight components attached to said shade cloth and vertically spaced apart from each other.
 3. The double-layered window curtain as claimed in claim 2, wherein said curtain member includes a plurality of horizontal shade components disposed and connected in a side-by-side manner such that said curtain member extends downwardly from said mounting seat when said curtain member is unfolded, and a plurality of guide rings connected respectively to first selected ones of said shade components to be thereby spaced apart vertically, said cord extending through said guide rings, one end of said shade cloth being mounted to said mounting seat, spaced apart horizontal portions of said shade cloth being attached to second selected ones of said shade components of said curtain member to thereby cover said cord and said guide rings.
 4. The double-layered window curtain as claimed in claim 3, wherein said guide rings are connected respectively to said first selected ones of said shade components between said shade components and said shade cloth.
 5. The double-layered window curtain as claimed in claim 1, wherein said curtain member includes a plurality of horizontal shade components disposed and connected in a side-by-side manner such that said curtain member extends downwardly from said mounting seat when said curtain member is unfolded, and a plurality of guide rings connected respectively to first selected ones of said shade components to thereby be spaced apart vertically, said cord extending through said guide rings, one end of said shade cloth being mounted to said mounting seat, spaced apart horizontal portions of said shade cloth being attached to second selected ones of said shade components of said curtain member to cover said cord and said guide rings.
 6. The double-layered window curtain as claimed in claim 5, wherein said guide rings are connected respectively to said first selected ones of said shade components between said shade components and said shade cloth.
 7. The double-layered window curtain as claimed in claim 1, wherein: said cord has a connecting segment extending through said curtain member and said guide rings, and a pulling segment extending downwardly from said driver; said shade cloth of said cover unit covers said connecting segment of said cord; and manipulation of said pulling segment of said cord results in folding and unfolding of said curtain member and said shade cloth among a fully folded position, a partially folded position, and a fully unfolded position. 